WorksheetsAC 2.3 MDPE Water Supply Quiz
Total questions: 21
Worksheet time: 11mins
What is the standard size of the MDPE water supply for most domestic installations?
20mm
25mm
30mm
35mm
What determines the pipe size after the MDPE water supply enters the building?
The color of the pipes
The type of flooring
The appliances and components installed
The height of the building
What should be carried out to determine the exact pipe size required?
Pipe coloring
Pipe sizing
Pipe cleaning
Pipe painting
What size of pipework is generally used in direct systems for cold water outlets?
10mm
15mm
20mm
25mm
In what type of installations is a 15mm rising main sufficient?
Large installations with multiple en-suite bathrooms
Small installations with a combination boiler
Industrial installations
Installations with multiple shower rooms
Where does the cold water rising main terminate in an open vented hot water storage system?
In the basement
In the kitchen
In the roof space
In the bathroom
What must the water storage capacity of the cistern be in relation to the hot water storage vessel?
Less than the hot water storage vessel
Equal to or greater than the hot water storage vessel
Twice the hot water storage vessel
Half of the hot water storage vessel
What is the minimum size of the cold water rising main required for an unvented hot water storage system?
15mm
18mm
22mm
25mm
Why do unvented hot water storage systems require a larger size pipe?
To reduce installation costs
To increase water temperature
To achieve a greater flowrate
To decrease water pressure
What happens to the number of outlets when hot water is supplied directly from the mains cold water supply through a mains pressure hot water heater?
The number of outlets is halved.
The number of outlets remains the same.
The number of outlets is effectively doubled.
The number of outlets is reduced by a quarter.
What might be required occasionally depending on the size of the property and the number of outlets being supplied?
A 15mm rising main
A 22mm rising main
A 28mm rising main
A 35mm rising main
What is the purpose of the indirect system of cold water supply?
To increase water pressure in high-pressure areas
To supply hot water to the entire building
To provide water in areas with low cold water supply pressure
To reduce water usage in residential areas
What size is the cold water rising main used in the indirect system?
10mm
15mm
20mm
25mm
Where are the cold water storage cisterns located in the indirect system?
In the basement
On the ground floor
In the roof space
In the garden
Which fixtures are directly taken off the cold water main in the indirect system?
All bathroom fixtures
The kitchen sink and possibly a downstairs cloakroom or utility room
Only the garden hose
All fixtures in the house
What is the minimum pipework size used for low pressure supply in cold distribution pipework?
15mm
22mm
28mm
35mm
What size pipework is often used for cold distribution pipework depending on the number of outlets?
15mm
22mm
28mm
35mm
What is the purpose of supplying 22mm pipework to the bath?
To reduce water pressure
To increase water temperature
To give a good flowrate
To decrease water flow
Why should cold water storage cisterns be positioned as high as possible?
To reduce the cost of installation
To increase water temperature
To provide adequate pressure
To minimize water usage
What must cold water storage cisterns be protected against?
Excessive sunlight and rain
Undue warming and frost
Dust and insects
High winds and humidity
Why is it important to carefully calculate the amount of cold water stored in the roof space?
To ensure the cisterns are lightweight
To prevent water overflow
To supply both cold and hot water needs
To reduce water evaporation
